Page 270 - qrps

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Q
uantitative
R
easoning &
P
roblem
S
olving
270
© 2014 Pacific Crest
M
athematical Language
Terms and notation
Type
B
ar
G
raph
Purpose
To provide magnitude analysis for single/
multiple view and comparison
Input Data
X,Y
X, Y
1
,...,Y
n
Axes
X: qualitative
Y: magnitude
Type
F
unction
G
raph
Purpose
Showing functional relationship in
mathematical models
Input Data
f
(
x
,
y
)
Axes
X: domain
Y: range
Type
H
istogram
Purpose
Frequency distribution to study percentages
by category
Input Data
X
Axes
X: category
Y: %
-3
-2
-1
0
1
2
3
0
5
10 15 20 25
Type
L
ine
G
raph
Purpose
Trend analysis for changing variables (i.e.
over time)
Input Data
X,Y
X, Y
1
,...,Y
n
Axes
X: quantitative
Y: quantitative
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
1950
1960
1970
1980
1990
2000
2010
World population, billions